.top {

    width: 100vw;
    height: 0.88rem;
    background: tomato;
    /* text-align: center; */
}

.Topbtn {
    position: absolute;
    width: 1.2rem;
    top:0.1rem;
    left: 0.1rem;
    opacity: 0.8;
    border-radius: 0.1rem ;
    border-color: tomato;

}
.top_p{
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    text-align: center;
    height: 0.88rem;
    line-height: 0.88rem;
    color: aliceblue;
    font-weight: bolder;
}